What is intrinsic value?
Intrinsic value is the portion of an option's premium that comes from the stock already being past the strike. It is what the option would be worth if exercised right now.
- Call intrinsic value = stock price - strike price (or zero if negative).
- Put intrinsic value = strike price - stock price (or zero if negative).
Examples
- Stock at $100, $90 call: intrinsic value is $10. If the call is trading for $11, that last $1 is extrinsic value.
- Stock at $100, $110 call: intrinsic value is $0. The call is OTM. Its entire price is extrinsic.
- Stock at $100, $110 put: intrinsic value is $10. Exercising lets you sell at $110 what is worth $100.
Why it matters
Intrinsic value does not decay with time. A deep-ITM option is mostly intrinsic value, so it loses less to time decay than an ATM or OTM option does. That is why long-term bullish traders often buy deep-ITM calls (LEAPS) as a lower-capital proxy for owning the stock.